If you're doing a major upgrade, why not go straight to 8.3? It's been out long enough that there aren't any obvious nasty bugs, and there have been a fair few fixes and improvements since prior versions.
Because am using Debian ETCH stable... i need to continue using this... In Debian ETCH stable 8.1 is only there....
I will be installing my project in other machines where it is having DEBIAN ETCH STABLE, i dont want to face any problems... so only...